forked from OSchip/llvm-project
56 lines
2.2 KiB
LLVM
56 lines
2.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -jump-threading < %s | FileCheck %s
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; PR9446
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; Just check that it doesn't crash
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define void @int327() nounwind {
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; CHECK-LABEL: @int327(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: unreachable
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; CHECK: for.cond:
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; CHECK-NEXT: [[TOBOOL3:%.*]] = icmp eq i8 undef, 0
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; CHECK-NEXT: br i1 [[TOBOOL3]], label [[FOR_COND23:%.*]], label [[FOR_COND4:%.*]]
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; CHECK: for.cond4:
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; CHECK-NEXT: br label [[FOR_COND:%.*]]
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; CHECK: for.cond23:
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; CHECK-NEXT: [[CONV321:%.*]] = phi i32 [ [[CONV32:%.*]], [[FOR_BODY28:%.*]] ], [ 0, [[FOR_COND]] ], [ [[CONV321]], [[FOR_COND23]] ]
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; CHECK-NEXT: [[L_266_0:%.*]] = phi i32 [ [[PHITMP:%.*]], [[FOR_BODY28]] ], [ 0, [[FOR_COND]] ], [ 0, [[FOR_COND23]] ]
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; CHECK-NEXT: [[CMP26:%.*]] = icmp eq i32 [[L_266_0]], 0
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; CHECK-NEXT: br i1 [[CMP26]], label [[FOR_BODY28]], label [[FOR_COND23]]
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; CHECK: for.body28:
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; CHECK-NEXT: [[AND:%.*]] = and i32 [[CONV321]], 1
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; CHECK-NEXT: [[CONV32]] = zext i8 undef to i32
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; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[L_266_0]], 1
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; CHECK-NEXT: [[PHITMP]] = and i32 [[ADD]], 255
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; CHECK-NEXT: br label [[FOR_COND23]]
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; CHECK: if.end43:
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; CHECK-NEXT: ret void
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;
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entry:
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unreachable
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for.cond: ; preds = %for.cond4
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%tobool3 = icmp eq i8 undef, 0
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br i1 %tobool3, label %for.cond23, label %for.cond4
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for.cond4: ; preds = %for.cond
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br label %for.cond
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for.cond23: ; preds = %for.body28, %for.cond23, %for.cond
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%conv321 = phi i32 [ %conv32, %for.body28 ], [ 0, %for.cond ], [ %conv321, %for.cond23 ]
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%l_266.0 = phi i32 [ %phitmp, %for.body28 ], [ 0, %for.cond ], [ 0, %for.cond23 ]
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%cmp26 = icmp eq i32 %l_266.0, 0
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br i1 %cmp26, label %for.body28, label %for.cond23
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for.body28: ; preds = %for.cond23
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%and = and i32 %conv321, 1
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%conv32 = zext i8 undef to i32
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%add = add nsw i32 %l_266.0, 1
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%phitmp = and i32 %add, 255
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br label %for.cond23
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if.end43: ; No predecessors!
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ret void
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}
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